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JPL Small-Body Database Browser
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(2019 SZ4)
Classification: Apollo [NEO]          SPK-ID: 3856731
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458751.5 (2019-Sep-25.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2350584239224734 0.0016014  
a 1.104954172602357 0.0012694 au
q .8452253862838865 0.00079846 au
i 6.213865043316019 0.048668 deg
node 170.8407676568396 0.0087467 deg
peri 285.4440437379643 0.025662 deg
M 291.8469499523745 0.19856 deg
tp 2458831.815177228636
(2019-Dec-14.31517723)
0.095609 TDB
period 424.2431377921336
1.16
0.73107
0.002002
d
yr
n .848570001328788 0.0014623 deg/d
Q 1.364682958920828 0.0015678 au
  Orbit Determination Parameters
   # obs. used (total)      11  
   data-arc span      4 days  
   first obs. used      2019-09-24  
   last obs. used      2019-09-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .38294  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-28 03:12:08  

Additional Information
 Earth MOID = .00583636 au 
 Jupiter MOID = 3.77935 au 
 T_jup = 5.600 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.6   .2469 MPO492719 autocmod 2.8

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1983-Oct-07 06:48 5_18:34 Earth 0.0550378963619605 0.0433578361014943 0.272565974770493 6.10251793220777 6.09457969583919 2445614.783234864 8314.08779777017 11731492.017068 1405.60284483031 -52.0165430467549 4147.19405937153 T 1 CATAB v2.0f-lin.ifort 2019-Sep-28 03:12:10 2019-Sep-28 03:12
1990-Sep-27 09:11 8_19:24 Earth 0.193736091572873 0.08479801317237 0.3096298283798 12.2712578844008 12.2701370729131 2448161.882917814 12683.8643738288 5899586.72469207 1662.30478296089 14.7239767538472 3607.13328012044 T 1 CATAB v2.0f-lin.ifort 2019-Sep-28 03:12:10 2019-Sep-28 03:12
2019-Oct-06 22:52 00:04 Earth 0.0479003979771904 0.0468502322855265 0.0489504418905822 6.49200076692939 6.4834268049593 2458763.452504714 3.84755451259071 52225.6141766881 84.9469030985629 -0.0280051305301534 78.2544592410978 T 1 CATAB v2.0f-lin.ifort 2019-Sep-28 03:12:10 2019-Sep-28 03:12
2020-May-29 02:24 20:14 Earth 0.343074031901 0.334815140211489 0.351333790366993 6.48475793577451 6.48356017289136 2458998.599796126 1214.24141406356 412756.162595156 4898.69541659236 -4.01258574495524 467.648364553474 T 1 CATAB v2.0f-lin.ifort 2019-Sep-28 03:12:10 2019-Sep-28 03:12
2048-Dec-20 07:25 1_14:19 Earth 0.168476849341078 0.15904567881 0.178079344279483 5.74240421733721 5.73964946508275 2469430.809013559 2298.5412170142 545016.41687478 3365.75499520548 -29.4899541103653 2490.34511739113 T 1 CATAB v2.0f-lin.ifort 2019-Sep-28 03:12:10 2019-Sep-28 03:12
2049-Apr-27 14:17 14:42 Earth 0.265558428410053 0.263715407350139 0.26745543152828 5.08283456316834 5.08086018359375 2469559.094968616 882.391179264775 210617.154174444 637.642883106332 -63.8243346828354 5000.08485897639 T 1 CATAB v2.0f-lin.ifort 2019-Sep-28 03:12:10 2019-Sep-28 03:12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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